XE1RK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving XE1RK, decoded by SO8OO in southeastern Poland. 65 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-20 and 2026-08-27.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 65 FT8 messages attributed to XE1RK as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (74%), followed by 40 m (26%). Most decodes (100%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.
Overview
Bands
Last attributed message: 2026-08-27 22:32 UTC
Observed FT8 message patterns
- Attributed sample
- 65 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -17 dB
- Estimated 10th-90th percentile
- -21 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 38, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 7.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with XE1RK in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to XE1RK
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- EK09 · 28 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 10,359 km (approx.)
- Last such locator decoded
- 2026-08-27 22:18 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | XE1RK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-08 23:49 | 40m | - / - | RD9U | -8 / - | 2 | Partial capture |
| 09-08 23:46 | 40m | - / -11 | 5Z4VJ | -4 / - | 3 | ✓ Closing fragment |
| 09-08 00:26 | 40m | - / - | G0GFC | -8 / - | 4 | Partial capture |
| 09-05 03:18 | 40m | - / - | SV5BYP | -2 / - | 5 | Partial capture |
| 09-05 03:01 | 40m | - / - | EB3JT | -15 / - | 2 | Partial capture |
| 09-05 02:53 | 40m | - / - | EB3JT | -14 / - | 4 | Partial capture |
| 08-29 16:34 | 20m | - / -12 | 6K2MAS | -8 / - | 2 | Partial capture |
| 08-29 16:20 | 20m | - / -12 | 6K2MAS | -7 / - | 10 | Partial capture |
| 08-29 16:13 | 20m | - / -12 | 6K2MAS | -8 / - | 7 | Partial capture |
| 08-28 23:49 | 40m | - / -20 | ON6AA | +5 / - | 3 | ✓ Closing fragment |
| 08-28 23:47 | 40m | - / -20 | SP6NIV | -6 / - | 11 | Partial capture |
| 08-28 23:41 | 40m | - / - | EA1AY | -2 / - | 2 | Partial capture |
| 08-28 23:41 | 40m | - / - | ON6AA | +15 / - | 3 | Partial capture |
| 08-28 23:40 | 40m | - / -8 | I3LID | +4 / - | 6 | ✓ Closing fragment |
| 08-27 22:32 | 20m | - / -13 | I2SDD | +2 / - | 8 | Partial capture |
| 08-27 22:31 | 20m | - / -10 | ON1BH | -16 / - | 2 | Partial capture |
| 08-27 22:25 | 20m | - / -10 | 5Z4VJ | -8 / - | 2 | ✓ Closing fragment |
| 08-27 22:13 | 20m | - / - | G4SDK | +2 / - | 4 | Partial capture |
| 08-27 02:06 | 40m | - / -10 | DH1KJ | -1 / - | 9 | ✓ Closing fragment |
| 08-26 23:16 | 20m | -16 / +2 | F4HSR | -10 / - | 3 | ✓ Closing observed |
| 08-26 23:16 | 20m | - / - | M7XUK | -16 / - | 3 | Partial capture |
| 08-26 23:15 | 20m | - / -10 | UA6YW | +7 / - | 4 | Partial capture |
| 08-26 23:14 | 20m | -16 / -2 | F4LXP | -17 / - | 4 | ✓ Closing observed |
| 08-26 23:13 | 20m | - / -23 | UA3GX | -8 / - | 3 | Partial capture |
| 08-26 23:11 | 20m | - / - | PD0OTH | -17 / - | 3 | Partial capture |
| 08-26 23:05 | 20m | -17 / - | N9AOT | - / -22 | 2 | ✓ Closing fragment |
| 08-26 23:04 | 20m | - / - | G0NGL | -22 / - | 2 | Partial capture |
| 08-26 22:59 | 20m | - / - | IW3BYL | -16 / - | 2 | Partial capture |
| 08-26 22:54 | 20m | -12 / - | EA5HM | - / -18 | 2 | Partial capture |
| 08-24 23:10 | 20m | - / - | DL1UDO | -8 / - | 4 | Partial capture |
| 08-24 23:06 | 20m | -16 / - | AB1HL | -18 / -11 | 3 | Partial capture |
| 08-24 23:06 | 20m | - / -7 | PI4TX | -10 / - | 4 | Partial capture |
| 08-24 23:05 | 20m | - / - | DD9WN | -5 / - | 3 | Partial capture |
| 08-24 23:03 | 20m | -20 / -17 | E77WA | -9 / -15 | 12 | Partial capture |
| 08-24 22:51 | 20m | - / -5 | OS8E | -8 / - | 10 | ✓ Closing fragment |
| 08-24 22:50 | 20m | - / -1 | DL6II | +2 / - | 3 | ✓ Closing fragment |
| 08-24 22:42 | 20m | - / -13 | DL3MIB | +12 / - | 4 | ✓ Closing fragment |
| 08-24 22:39 | 20m | - / -16 | EB4DMH | +5 / - | 3 | ✓ Closing fragment |
| 08-24 22:36 | 20m | - / -14 | CT1BFP | -9 / - | 14 | ✓ Closing fragment |
| 08-24 00:07 | 20m | - / - | XQ1KK | -2 / - | 2 | Partial capture |
| 08-24 00:02 | 20m | -9 / - | 4L7T | - / - | 2 | ✓ Closing fragment |
| 08-22 01:17 | 20m | -9 / +2 | A93MO | -6 / -18 | 17 | ✓ Full exchange observed |
| 08-22 01:14 | 20m | - / - | IV3FHI | -5 / - | 2 | Partial capture |
| 08-22 01:09 | 20m | - / - | YO3GNF | +3 / - | 5 | Partial capture |
| 08-22 01:08 | 20m | - / - | DL1R | -5 / - | 8 | Partial capture |
| 08-22 00:54 | 20m | - / -13 | UZ5CA | +9 / - | 3 | Partial capture |
| 08-22 00:54 | 20m | - / - | RD6OB | -11 / - | 9 | Partial capture |
| 08-22 00:51 | 20m | - / - | DL3MIB | +5 / - | 7 | Partial capture |
| 08-22 00:43 | 20m | - / - | TA3HEB | 0 / - | 4 | Partial capture |
| 08-22 00:40 | 20m | - / -4 | OD5XX | +3 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 031830 +3 1980 XE1RK SV5BYP KM46 (x5) 002615 -9 1879 XE1RK G0GFC IO92 (x4) 234645 -3 2536 XE1RK 5Z4VJ KI88 (x3) 234815 -4 1123 XE1RK EA5JAH IM99 234945 -6 582 XE1RK RD9U NO33 (x2)
UTC dB Audio Message 161630 -6 435 XE1RK 6K2MAS R-12 (x15)
UTC dB Audio Message 021400 -1 1314 XE1RK RX6DA KN85 (x5) 220615 +14 2307 XE1RK E74DKB JN94
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee